A pair of security surveillance companies — one from Irvine and one from Chino — conducted a simulation Thursday with the dog, Buddy, at the family’s home in an attempt to re-create the security footage, then compared it with the original video.

Buddy walked past cameras at the same distance and pace as the night the animal was captured on video. That footage was then compared side-by-side with the original.

“This dog has the same mannerisms,” of the animal captured on surveillance video on July 29 at 3:45 a.m., said Matthew Adling of Hudson Investigations.

Once viewed, it confirmed the observation of a Department of Fish and Wildlife official, who said on Aug. 1 that the animal apparently stalking along the 11000 block of Tina Street was “a stocky dog.”

Brendan Mriz, Buddy’s owner was certain as well, saying Buddy had escaped the family home simultaneously with the time stamp on the security footage.